RGMB and nasopharyngeal carcinoma: In order to further investigate the effect of lncRNA RGMB-AS1 overexpression on NPC growth in vivo, the CNE-2 cell line with stable lncRNA RGMB-AS1 overexpression was constructed using pcDNA-RGMB-AS1, and then subcutaneously injected into the right axilla of nude mice to establish the CNE-2 xenograft tumor model in nude mice.